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https://opencores.org/ocsvn/spacewire_light/spacewire_light/trunk
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/spacewire_light/trunk/syn/streamtest_digilent-xc3s200
- from Rev 3 to Rev 6
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Rev 3 → Rev 6
/streamtest.ucf
5,11 → 5,11
TIMESPEC "TS_clk" = PERIOD "clk50" 18.0 ns ; |
|
# Paths between fastclk and sysclk must be constrained to fastclk period. |
# fastclk = 200 MHz = 5 ns nominal, - 1 ns margin = 4 ns |
NET "sysclk" TNM_NET = "sysclk" ; |
NET "fastclk" TNM_NET = "fastclk" ; |
TIMESPEC "TS_fast_to_sys" = FROM "fastclk" TO "sysclk" 4 ns ; |
TIMESPEC "TS_sys_to_fast" = FROM "sysclk" TO "fastclk" 4 ns ; |
# fastclk = 200 MHz = 5 ns = 3 ns delay + 2 ns skew |
NET "sysclk" TNM_NET = "sysclk" | MAXSKEW = 1 ns; |
NET "fastclk" TNM_NET = "fastclk" | MAXSKEW = 1 ns; |
TIMESPEC "TS_fast_to_sys" = FROM "fastclk" TO "sysclk" 3 ns DATAPATHONLY ; |
TIMESPEC "TS_sys_to_fast" = FROM "sysclk" TO "fastclk" 3 ns DATAPATHONLY ; |
|
NET "clk50" LOC = "T9" ; |
NET "led(0)" LOC = "K12" | DRIVE = 6 ; |